Finding the Fourth Proportional to 209,041.36, 288,318.13 and 144,617.81
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Solution
The fourth proportional to 209,041.36, 288,318.13 and 144,617.81 is: 199,462.61
Step by Step Solution
- Step 1: Write the proportion equation
209,041.36 : 288,318.13 = 144,617.81 : x - Step 2: Convert to fraction form
209,041.36/288,318.13 = 144,617.81/x - Step 3: Cross multiply
209,041.36x = 288,318.13 × 144,617.81 - Step 4: Simplify right side
209,041.36x = 41,695,935,554.24 - Step 5: Solve for x
x = 41,695,935,554.24/209,041.36 - Step 6: Final answer
x = 199,462.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.